Question 1

The third quarter moon rises at noon.

Accepted Answer

A) True 
 B)False

Question 2

The seasons are caused by the precession of Earth's axis.

Accepted Answer

A) True 
 B)False

Question 3

On the vernal equinox the sun is

Accepted Answer

A)  23° north of the celestial equator. 
B)  23° south of the celestial equator. 
C)  on the celestial equator and moving north with respect to the equator. 
D)  on the celestial equator and moving south with respect to the equator. 
E)  closest to the north celestial pole. 
A)  23° north of the celestial equator. 
B)  23° south of the celestial equator. 
C)  on the celestial equator and moving north with respect to the equator. 
D)  on the celestial equator and moving south with respect to the equator. 
E)  closest to the north celestial pole.

Question 4

Earth doesn't experience a solar eclipse every month because

Accepted Answer

A)  of unpredictable weather patterns. 
B)  the moon always keeps its same side toward the Earth. 
C)  the moon's orbit plane is not aligned with the Earth's orbit plane. 
D)  its sometimes nighttime when the eclipse occurs. 
E)  sometimes the moon is too far away. 
A)  of unpredictable weather patterns. 
B)  the moon always keeps its same side toward the Earth. 
C)  the moon's orbit plane is not aligned with the Earth's orbit plane. 
D)  its sometimes nighttime when the eclipse occurs. 
E)  sometimes the moon is too far away.

Question 5

The sun is on the celestial equator at the times of the

Accepted Answer

A)  vernal equinox and the summer solstice. 
B)  autumnal equinox and the vernal equinox. 
C)  summer solstice and the winter solstice. 
D)  autumnal equinox and the winter solstice. 
E)  sun is on the ecliptic and is never on the celestial equator. 
A)  vernal equinox and the summer solstice. 
B)  autumnal equinox and the vernal equinox. 
C)  summer solstice and the winter solstice. 
D)  autumnal equinox and the winter solstice. 
E)  sun is on the ecliptic and is never on the celestial equator.

Question 6

The ____ of the moon is the period of time for the moon to complete a cycle of the lunar phases and is approximately 29.5 days long.

Accepted Answer

A)  sidereal period 
B)  saros cycle 
C)  synodic period 
D)  eclipse season 
E)  umbral period 
A)  sidereal period 
B)  saros cycle 
C)  synodic period 
D)  eclipse season 
E)  umbral period

Question 7

The ____________________ period (or "month") of the moon is the time required for one revolution of the moon around Earth with respect to the stars.

Accepted Answer

The answer of The ____________________ period (or "month") of the...

Question 8

Why have more people seen total lunar eclipses than total solar eclipses?

Accepted Answer

The answer of Why have more people seen total lunar...

Question 9

The ____ moon is visible above the eastern horizon a couple of hours before sunrise.

Accepted Answer

A)  waning gibbous 
B)  waxing gibbous 
C)  waxing crescent 
D)  waning crescent 
E)  new moon 
A)  waning gibbous 
B)  waxing gibbous 
C)  waxing crescent 
D)  waning crescent 
E)  new moon

Question 10

How can tidal forces affect the rotation of celestial bodies and their orbital motion?

Accepted Answer

Tidal forces can affect the rotation of

Question 11

The path of totality for a solar eclipse is swept out by the tip of the moon's umbra as the umbra moves over Earth.

Accepted Answer

A) True 
 B)False

Question 12

A(n) ____________________ eclipse occurs when the moon is at its greatest distance from Earth and the moon is new and at a node in its orbit.

Accepted Answer

The answer of A(n) ____________________ eclipse occurs when the moon...

Question 13

The figure shows the ______ and _____ moon phases..

Accepted Answer

A)  crescent; first quarter 
B)  new; new 
C)  crescent; full 
D)  first quarter; full 
A)  crescent; first quarter 
B)  new; new 
C)  crescent; full 
D)  first quarter; full

Question 14

If the moon's orbital plane was aligned with the celestial equator we could

Accepted Answer

A)  have eclipses every month. 
B)  never have eclipses. 
C)  have eclipses only at solstice. 
D)  have eclipses only at the equinoxes. 
A)  have eclipses every month. 
B)  never have eclipses. 
C)  have eclipses only at solstice. 
D)  have eclipses only at the equinoxes.

Question 15

Precession of Earth's axis causes the date at which perihelion of Earth's orbit occurs to slowly change.

Accepted Answer

A) True 
 B)False

Question 16

A lunar eclipse that occurs when the moon moves completely into Earth's umbral shadow is called

Accepted Answer

A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular eclipse. 
D)  a penumbral lunar eclipse. 
E)  a total lunar eclipse. 
A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular eclipse. 
D)  a penumbral lunar eclipse. 
E)  a total lunar eclipse.

Question 17

Explain why people who live close to the equator do not experience major changes in the seasons.

Accepted Answer

The answer of Explain why people who live close to...

Question 18

A(n) ____ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science.

Accepted Answer

A)  theory 
B)  hypothesis 
C)  pseudoscience 
D)  allegory 
E)  scientific model 
A)  theory 
B)  hypothesis 
C)  pseudoscience 
D)  allegory 
E)  scientific model

Question 19

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Accepted Answer

If you were on the moon facing Earth dur

Question 20

Assume all else is unchanged, and the Earth's rotational axis is perpendicular to the ecliptic. As a result, seasonal variations on the Earth would

Accepted Answer

A)  be practically non-existent. 
B)  remain the same as they are at now. 
C)  have the same severity but each season would last twice as long. 
D)  be much more severe. 
A)  be practically non-existent. 
B)  remain the same as they are at now. 
C)  have the same severity but each season would last twice as long. 
D)  be much more severe.

The third quarter moon rises at noon.

The seasons are caused by the precession of Earth's axis.

On the vernal equinox the sun is

Earth doesn't experience a solar eclipse every month because

The sun is on the celestial equator at the times of the

The ____ of the moon is the period of time for the moon to complete a cycle of the lunar phases and is approximately 29.5 days long.

The ____________________ period (or "month") of the moon is the time required for one revolution of the moon around Earth with respect to the stars.

Why have more people seen total lunar eclipses than total solar eclipses?

The ____ moon is visible above the eastern horizon a couple of hours before sunrise.

How can tidal forces affect the rotation of celestial bodies and their orbital motion?

The path of totality for a solar eclipse is swept out by the tip of the moon's umbra as the umbra moves over Earth.

A(n) ____________________ eclipse occurs when the moon is at its greatest distance from Earth and the moon is new and at a node in its orbit.

The figure shows the __ and _ moon phases..

If the moon's orbital plane was aligned with the celestial equator we could

Precession of Earth's axis causes the date at which perihelion of Earth's orbit occurs to slowly change.

A lunar eclipse that occurs when the moon moves completely into Earth's umbral shadow is called

Explain why people who live close to the equator do not experience major changes in the seasons.

A(n) ____ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science.

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Assume all else is unchanged, and the Earth's rotational axis is perpendicular to the ecliptic. As a result, seasonal variations on the Earth would

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

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Exam 3: Cycles of the Sun and Moon

The third quarter moon rises at noon.

The seasons are caused by the precession of Earth's axis.

On the vernal equinox the sun is

Earth doesn't experience a solar eclipse every month because

The sun is on the celestial equator at the times of the

The ____ of the moon is the period of time for the moon to complete a cycle of the lunar phases and is approximately 29.5 days long.

The ____________________ period (or "month") of the moon is the time required for one revolution of the moon around Earth with respect to the stars.

Why have more people seen total lunar eclipses than total solar eclipses?

The ____ moon is visible above the eastern horizon a couple of hours before sunrise.

How can tidal forces affect the rotation of celestial bodies and their orbital motion?

The path of totality for a solar eclipse is swept out by the tip of the moon's umbra as the umbra moves over Earth.

A(n) ____________________ eclipse occurs when the moon is at its greatest distance from Earth and the moon is new and at a node in its orbit.

The figure shows the ______ and _____ moon phases..

If the moon's orbital plane was aligned with the celestial equator we could

Precession of Earth's axis causes the date at which perihelion of Earth's orbit occurs to slowly change.

A lunar eclipse that occurs when the moon moves completely into Earth's umbral shadow is called

Explain why people who live close to the equator do not experience major changes in the seasons.

A(n) ____ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science.

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Assume all else is unchanged, and the Earth's rotational axis is perpendicular to the ecliptic. As a result, seasonal variations on the Earth would

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

The figure shows the __ and _ moon phases..